Question

the complement of an angle measuring 20 degree ​

Answer 1

We know, two angles are complementary when they add up to 90o.

Given, measure of one complementary

angle is 20o.

⇒ Measure of other complementary angle

=90o−20o=70o.

∴ Measure of a complementary angle of

20o=70o.

hence, the answer is 70o degree.